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What is a quick way to determine if 3 is a factor of a number?
If the sum of the digits of a given number is divisible by three, the number is divisible by three.
How can you determine a number could be divided by 15?
If it's divisible by three and five, it's divisible by fifteen.
Using divisibility rule determine what number are divisible by 4 and 8?
To determine if a number is divisible by 4, check if the last two digits form a number that is divisible by 4. For divisibility by 8, the last three digits of the number must be divisible by 8. Essentially, a number that meets the criteria for both divisibility by 4 and 8 will have its last two digits divisible by 4 and its last three digits divisible by 8.
How do you use the divisibility test to determine if 10048 is divisible by eight?
To determine if 10048 is divisible by eight, you can use the divisibility test for eight, which states that a number is divisible by eight if its last three digits form a number that is divisible by eight. In this case, the last three digits of 10048 are 048. Since 48 divided by 8 equals 6 with no remainder, 048 is divisible by eight. Therefore, 10048 is also divisible by eight.
What are signs that a number is divisible by 3?
If all the digits in a number add up to a number divisible by three, the number itself is divisible by three.For example the number 711: 7 + 1 + 1 = 9. Nine is divisible by three, therefore 711 is divisible by three.
How do you determine if 1041 is a prime number?
Since its digits add up to a multiple of three, it's divisible by three. That means it's not prime.
What is the converse inverse and contrapositive If every digit of a number is divisible by 3 then the number is divisible by 3?
Converse:If a number is divisible by 3, then every number of a digit is divisible by three. Inverse: If every digit of a number is not divisible by 3 then the number is not divisible by 3? Contrapositive:If a number is not divisible by 3, then every number of a digit is not divisible by three.
If the ............. of the digits for a whole number is divisible by three then the whole number is also divisible by three?
You would fill in the blank with the word sum, which means that you add each of the digits of the number. If that sum is divisible by three then the number is divisible by 3.
Is 492 divisible by three?
Yes, 492 is divisible by three. To determine this, you can add the digits together: 4 + 9 + 2 = 15. Since 15 is divisible by three, it confirms that 492 is also divisible by three.
What is the rule to determine if a number is divisible by 12?
That the number is divisible by 4* and the sum of its digits is a multiple of 3. *If the number has three of more digits then it is only necessary to look at the tens and units to determine if it is divisible by 4, as 4 is a factor of 100 and therefore of any multiple of 100. Examples : 75 : is not divisible by 4 although its digits total 12 which is a multiple of 3. 132 : is divisible by 4 as 32 is divisible by 4, and its digits total 6 which is divisible by 3, then 132 is divisible by 12.
What is the largest three digit multiple of three?
The largest three-digit number is 999. To determine if it is a multiple of three, we can check if the sum of its digits (9 + 9 + 9 = 27) is divisible by three. Since 27 is divisible by three, 999 is the largest three-digit multiple of three.
Is 744 divisible by 3?
The question wasn't "what is 744 divided by 3?" The question was, "Is 744 divisible by 3?" The answer is, "Yes." In fact, ANY number is divisible by three, but the answer may not be a whole number (e.g. 745 divided by 3 is 248.33333....). Here's a tip. To determine quickly whether any given number is equally divisible by three, add the digits. If that answer has two or more digits, add them. Keep doing this until you get a one-digit answer. If THAT one digit is divisible by three, so is the original number. Obviously, the one digit would be a 3, a 6 or a 9. Example 1: Is 2,169 divisible by 3? 2+1+6+9=18 1+8=9 Nine IS divisible by three so, yes, 2,169 is divisible by 3. Example 2: Is 8,075 divisible by 3? 8+0+7+5=20 2+0=2 Two is NOT divisible by three so, no, 8,075 is not divisible by 3.
