Q: What are the prime factors of the number 748,890?

 A: 2, 3, 5, 53, 157

Why are those the prime factors of the number 748,890?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 748,890

748,890
Factor Arrows
2374,445
Factor Arrows
3124,815
Factor Arrows
341,605
Factor Arrows
58,321
Factor Arrows
53157

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 53, 157

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 53 x 157 = 748,890

This can also be written as 21 x 32 x 51 x 531 x 1571 = 748,890

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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