A triangle number has the form n(n+1)2 for some positive integer n.
then when you substitute n=44 then it is 990 which is largest triangular number before hundred.
990
The largest prime number less than 1000 is 997.The largest prime number no less than 1000 is currently 257,885,161-1
It is 999.
1000 ÷ 8 = 125 → largest less than 1000 divisible by 8 is 124 x 8 = 992
Start with 1000 and work back, rejecting any composites that you find.
Pick out the largest number, and check whether it is less than the sum of the other two numbers. If it is less, then you can. If it is greater or equal, then you can't.
1000 more is 577233 1000 less is 575233
9797 is the largest prime number less than 100.
67 will be the largest prime number less than 70.
312 = 961
10 less than 1000 = 1000 minus 10 = 990
The smallest multiple of any number is the number itself.The largest multiple of 13 that is less than 1,000 is 988 = 13 x 76