Least Common Multiple of 978 and 985

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Free LCM Calculator determines the least common multiple (LCM) between 978 and 985 the smallest integer that is 963330 that is divisible by both numbers.

Least Common Multiple (LCM) of 978 and 985 is 963330.

LCM(978,985) = 963330

LCM of 978 and 985

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

LCM of:
and

Least Common Multiple of 978 and 985

LCM of 978 and 985 is 963330

Least common multiple can be found by multiplying the highest exponent prime factors of 978 and 985. First we will calculate the prime factors of 978 and 985.

Prime Factorization of 978


2 978
3 489
163 163
1

Prime factors of 978 are 2, 3,163. Prime factorization of 978 in exponential form is:

978 = 21×31×1631

Prime Factorization of 985


5 985
197 197
1

Prime factors of 985 are 5,197. Prime factorization of 985 in exponential form is:

985 = 51×1971

Now multiplying the highest exponent prime factors to calculate the LCM of 978 and 985.

LCM(978,985) = 21×31×51×1631×1971
LCM(978,985) = 963330

Factors of 978

List of positive integer factors of 978 that divides 978 without a remainder.

1, 2, 3, 6, 163, 326, 489, 978

Factors of 985

List of positive integer factors of 985 that divides 985 without a remainder.

1, 5, 197, 985

Least Common Multiple of 978 and 985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 978 and 985, than apply into the LCM equation.

GCF(978,985) = 1
LCM(978,985) = ( 978 × 985) / 1
LCM(978,985) = 963330 / 1
LCM(978,985) = 963330

Properties of LCM 978 and 985

(i) The LCM of 985 and 978 is associative

LCM of 978 and 985 = LCM of 985 and 978

Frequently Asked Questions on LCM of 978 and 985

1. What is the LCM of 978 and 985?

Answer: LCM of 978 and 985 is 963330.

2. What are the Factors of 978?

Answer: Factors of 978 are 1, 2, 3, 6, 163, 326, 489, 978. There are 8 integers that are factors of 978. The greatest factor of 978 is 978.

3. What are the Factors of 985?

Answer: Factors of 985 are 1, 5, 197, 985. There are 4 integers that are factors of 985. The greatest factor of 985 is 985.

4. How to Find the LCM of 978 and 985?

Answer:

Least Common Multiple of 978 and 985 = 963330

Step 1: Find the prime factorization of 978

978 = 2 x 3 x 163

Step 2: Find the prime factorization of 985

985 = 5 x 197

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

LCM = 963330 = 2 x 3 x 5 x 163 x 197

Step 4: Therefore, the least common multiple of 978 and 985 is 963330.