Least Common Multiple of 25 and 34

Least common multiple or lowest common denominator (LCD) can be calculated in three ways;

• Least Common Multiple of 25 and 34 by Prime method
• Least Common Multiple of 25 and 34 with GCF Formula

Least common multiple can be found by multiplying the highest exponent prime factors of 25 and 34. First we will calculate the prime factors of 25 and 34.

Prime Factorization of 25

Prime factors of 25 are 5. Prime factorization of 25 in exponential form is:

25 = 5²

Prime Factorization of 34

Prime factors of 34 are 2,17. Prime factorization of 34 in exponential form is:

34 = 2¹×17¹

Now multiplying the highest exponent prime factors to calculate the LCM of 25 and 34.

LCM(25,34) = 2¹×5²×17¹
LCM(25,34) = 850

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1, 5, 25

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1, 2, 17, 34

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25 and 34, than apply into the LCM equation.

GCF(25,34) = 1
LCM(25,34) = ( 25 × 34) / 1
LCM(25,34) = 850 / 1
LCM(25,34) = 850

(i) The LCM of 34 and 25 is associative

LCM of 25 and 34 = LCM of 34 and 25

1. What is the LCM of 25 and 34?

Answer: LCM of 25 and 34 is 850.

2. What are the Factors of 25?

Answer: Factors of 25 are 1, 5, 25. There are 3 integers that are factors of 25. The greatest factor of 25 is 25.

3. What are the Factors of 34?

Answer: Factors of 34 are 1, 2, 17, 34. There are 4 integers that are factors of 34. The greatest factor of 34 is 34.

4. How to Find the LCM of 25 and 34?

Answer:

Least Common Multiple of 25 and 34 = 850

Step 1: Find the prime factorization of 25

25 = 5 x 5

Step 2: Find the prime factorization of 34

34 = 2 x 17

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 850 = 2 x 5 x 5 x 17

Step 4: Therefore, the least common multiple of 25 and 34 is 850.