For this kind of question, I would suggest looking up a table of prime numbers. As an alternative, you can try to find factors for each of the numbers - if it has a factor, it is NOT a prime. For this range of numbers, testing for prime numbers up to 13 is appropriate. (If 17 is a factor of one of these numbers, the other factor is less than 17, so you would already have found it before you reach 17.)
To simplify 220/100, you can divide both the numerator and denominator by their greatest common factor (GCF). In this case, the GCF of 220 and 100 is 20. Dividing both numbers by 20 gives us 11/5. So, 220/100 simplified is 11/5.
110
The multiples of 220 (which are infinite) are all divisible by 220, including these: 220, 440, 660, 880, 1100, 1320, 1540, 1760, 1980 . . .
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, and 132.The factors of 220 are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, and 220The common factors are 1, 2, 4, 11, 22, and 44. Therefore, the greatest common factor is 44.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 132 are 2, 2, 3, and 11.The prime factors of 220 are 2, 2, 5, and 11.The prime factors in common are 2, 2, and 11, so the greatest common factor is 2 x 2 x 11 = 44.The GCF of 132, 220 is 44.
The highest common factor of the numbers 104, 348 and 220 is 4.
Since 220 is a factor of 660, it is automatically the GCF.
The greatest common factor of 220, 440, and 880 is 220
Since 5 is a factor of 220, it is automatically the GCF.
The greatest common factor of 220 and 400 is 20.
220 110,2 55,2,2 11,5,2,2
The Greatest Common Factor of 100, 120, 220: 20
Oh, dude, the greatest common factor of 220, 440, and 880 is 220. It's like the biggest number that can divide all those numbers without leaving a remainder. So yeah, 220 is the winner in this math party.
220 110,2 55,2,2 11,5,2,2
It is: 220
It doesn't matter what you use, you need at least two numbers to find a GCF.
For this kind of question, I would suggest looking up a table of prime numbers. As an alternative, you can try to find factors for each of the numbers - if it has a factor, it is NOT a prime. For this range of numbers, testing for prime numbers up to 13 is appropriate. (If 17 is a factor of one of these numbers, the other factor is less than 17, so you would already have found it before you reach 17.)