Q: Does every number that has 4 as a factor also have 2 as a factor?

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In order to determine if 2 is a factor of 49 (or any other number), ask yourself if the number is even or odd. If the number is odd, it is not a factor of 2. 49 is odd, so 2 is not a factor of 49. You can also divide 2 into the number. If there is no remainder, 2 is a factor of the number. 49 divided by 2 is 24 with a remainder of 1, so 2 is not a factor of 49.

Even numbers, by definition, are divisible by 2. That means that every even number has at least one 2 as a factor. If every even number has one, then any set of even numbers will have at least one 2 as a common factor. Since that number has two as a factor, it's even.

Yes, since 8 is divisible by 4 twice.

5 is a factor of any whole number ending in 5; it is also a factor of any whole number of 2 or more digits ending in zero.

No. Only 14 and multiples of 14 have both 7 and 2 as factors.

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Yes. Every even number has a factor of 2.

2 is a factor of every even number. Adding or subtracting one from an even number leaves an odd number. Since even and odd numbers alternate, 2 will be a factor of every other number.

Yes, because 2 is a factor of 4.

It's easy to see whether 2 is a factor of a number because 2 is a factor of every even number and not a factor of any odd number.

Every number to which 2 is a factor. Therefore, every multiple of two; hence, every even number.

because 70 is an even number, and every even number has 2 as a factor.

Because every number can be created by a factor of 1. 1x1 = 1 2x1 = 2 etc.

That's the definition of an even number. If they didn't have 2 as a factor, they wouldn't be even.

Yes.

By definition, every even number has 2 as a factor. That means that every set of even numbers will have at least 2 as a common factor. The GCF might be higher, but if it has 2 as a factor, it's even.

5, 2, and 1, are all going to be factors with and number that 10 is a factor of.

every number except has atleast 2 factors