# What is the Least Common Multiple of 80 and 98?

*Least common multiple* or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 80 and 98 is **3920**.

LCM(80,98) = 3920

## Least Common Multiple of 80 and 98 with GCF Formula

The formula of **LCM** is LCM(a,b) = ( a × b) / GCF(a,b).

We need to calculate greatest common factor 80 and 98, than apply into the LCM equation.

GCF(80,98) = 2

LCM(80,98) = ( 80 × 98) / 2

LCM(80,98) = 7840 / 2

LCM(80,98) = 3920

## Least Common Multiple (LCM) of 80 and 98 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80 and 98. First we will calculate the **prime factors of 80 and 98**.

### Prime Factorization of 80

Prime factors of 80 are 2, 5. Prime factorization of **80** in exponential form is:

80 = 2^{4} × 5^{1}

### Prime Factorization of 98

Prime factors of 98 are 2, 7. Prime factorization of **98** in exponential form is:

98 = 2^{1} × 7^{2}

Now multiplying the highest exponent prime factors to calculate the **LCM of 80 and 98**.

LCM(80,98) = 2^{4} × 5^{1} × 7^{2}

LCM(80,98) = 3920

#### Related Least Common Multiples of 80

#### Related Least Common Multiples of 98

- LCM of 98 and 102
- LCM of 98 and 103
- LCM of 98 and 104
- LCM of 98 and 105
- LCM of 98 and 106
- LCM of 98 and 107
- LCM of 98 and 108
- LCM of 98 and 109
- LCM of 98 and 110
- LCM of 98 and 111
- LCM of 98 and 112
- LCM of 98 and 113
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- LCM of 98 and 115
- LCM of 98 and 116
- LCM of 98 and 117
- LCM of 98 and 118