Q: What are the prime factors of the number 748,400?

 A: 2, 5, 1871

Why are those the prime factors of the number 748,400?

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 748,400

748,400
Factor Arrows
2374,200
Factor Arrows
2187,100
Factor Arrows
293,550
Factor Arrows
246,775
Factor Arrows
59,355
Factor Arrows
51,871

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, 5, 1871

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 1,871 = 748,400

This can also be written as 24 x 52 x 1,8711 = 748,400

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


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