Least Common Multiple of 98 and 105
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 98 and 105 the smallest integer that is 1470 that is divisible by both numbers.
Least Common Multiple (LCM) of 98 and 105 is 1470.
LCM(98,105) = 1470
LCM of 98 and 105
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
- Least Common Multiple of 98 and 105 by Prime method
- Least Common Multiple of 98 and 105 with GCF Formula
LCM of 98 and 105 is 1470
Least common multiple can be found by multiplying the highest exponent prime factors of 98 and 105. First we will calculate the prime factors of 98 and 105.
Prime Factorization of 98
| 2 | 98 |
| 7 | 49 |
| 7 | 7 |
| 1 |
Prime factors of 98 are 2,7. Prime factorization of 98 in exponential form is:
98 = 21×72
Prime Factorization of 105
| 3 | 105 |
| 5 | 35 |
| 7 | 7 |
| 1 |
Prime factors of 105 are 3, 5,7. Prime factorization of 105 in exponential form is:
105 = 31×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 98 and 105.
LCM(98,105) = 21×31×51×72
LCM(98,105) = 1470
Factors of 98
List of positive integer factors of 98 that divides 98 without a remainder.
1, 2, 7, 14, 49, 98
Factors of 105
List of positive integer factors of 105 that divides 105 without a remainder.
1, 3, 5, 7, 15, 21, 35, 105
Least Common Multiple of 98 and 105 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 98 and 105, than apply into the LCM equation.
GCF(98,105) = 7
LCM(98,105) = ( 98 × 105) / 7
LCM(98,105) = 10290 / 7
LCM(98,105) = 1470
Properties of LCM 98 and 105
(i) The LCM of 105 and 98 is associative
LCM of 98 and 105 = LCM of 105 and 98
Related Least Common Multiples of 98
Related Least Common Multiples of 105
Frequently Asked Questions on LCM of 98 and 105
1. What is the LCM of 98 and 105?
Answer: LCM of 98 and 105 is 1470.
2. What are the Factors of 98?
Answer: Factors of 98 are 1, 2, 7, 14, 49, 98. There are 6 integers that are factors of 98. The greatest factor of 98 is 98.
3. What are the Factors of 105?
Answer: Factors of 105 are 1, 3, 5, 7, 15, 21, 35, 105. There are 8 integers that are factors of 105. The greatest factor of 105 is 105.
4. How to Find the LCM of 98 and 105?
Answer:
Least Common Multiple of 98 and 105 = 1470
Step 1: Find the prime factorization of 98
98 = 2 x 7 x 7
Step 2: Find the prime factorization of 105
105 = 3 x 5 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1470 = 2 x 3 x 5 x 7 x 7
Step 4: Therefore, the least common multiple of 98 and 105 is 1470.