3 is not a factor of 49. To find out if a 3 is a factor of another number, simply add the digits of the number together to discover if 3 will divide evenly into their sum. If it can, the number is divisible by 3.
For example, for the number 1890, add 1 + 8 + 9 + 0. The answer is 18. 18 is divisible by 3, so 1890 is divisible by 3. If you like, you can carry this out farther and add the digits of 18 together. The answer is 9. 9 is divisible by 3, so 1890 is divisible by 3.
This method works for any number, no matter how many digits it has, to find out if a number is divisible by 3.
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No, 148 is not divisible by 3.
HINT: The easiest way to determine if a number is divisible by three is to add the numbers together, and if the answer is divisible by 3, the original number is, too.
Example: In this case, 1 + 4 + 8 = 13.
13 is not divisible by 3 so neither is 148.
NOTE: The trick only works for multiples of 3.
Yes, as its factors are: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764
3 is not a factor of 148. All multiples of 3 have digits that add up to a multiple of 3. 1+4+8 = 13, which is not divisible by 3. 148 divided by 3 is 49 and 1/3.
The greatest common factor of 243 and 246 is 3.
The GCF of 120 and 148 is 4.
The GCF of 84, 105, 142, and 148 is 1.
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 28 and 100 is 4
No, 31 is not a factor of 148.