That would be 1--no numbers besides 1 go into both 10 and 21.
21 is a composite number, as it can be divided by 7 and 3. The other three numbers are prime numbers and do not divide into anything besides themselves.
24
Whole numbers are known as zero plus the "counting numbers." (1, 2, 3, ...) So, the whole numbers of 21 would be 0 - 21. (23 numbers.)
1, 3, 7 and 21. Four numbers.
That would be 1--no numbers besides 1 go into both 10 and 21.
21 is a composite number, as it can be divided by 7 and 3. The other three numbers are prime numbers and do not divide into anything besides themselves.
24
21
-21
Whole numbers are known as zero plus the "counting numbers." (1, 2, 3, ...) So, the whole numbers of 21 would be 0 - 21. (23 numbers.)
Numbers which can be divided by other numbers besides 1. Numbers with factors besides 1 and themselves. Numbers which are not prime. 91 is composite because it is 13 x 7. But 41 is not composite because it is only 41 x 1.
24 + 21 = 45 24 - 21 = 3 Therefore, the two numbers are 21 and 24.
You need at least two numbers to find a GCF. The GCF of 21 and 42 is 21.
37 + 21 = 5837 - 21 = 16The two numbers therefore are 37 and 21.
1, 3, 7 and 21. Four numbers.
How about: 3*7 = 21 or 1*21 = 21