Q: What are the prime factors of the number 42,244,400?

 A: 2, 5, 11, 9601

Why are those the prime factors of the number 42,244,400?

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 42,244,400

42,244,400
Factor Arrows
221,122,200
Factor Arrows
210,561,100
Factor Arrows
25,280,550
Factor Arrows
22,640,275
Factor Arrows
5528,055
Factor Arrows
5105,611
Factor Arrows
119,601

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, 11, 9601

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 11 x 9,601 = 42,244,400

This can also be written as 24 x 52 x 111 x 9,6011 = 42,244,400

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


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